Introduction:

Wedges offer another example of a force distance tradeoff. Unfortunately, their use is limited because of the friction they usually create.

Activity:

Try the wedge sample provided by your teacher. Explain the force-distance trade-off involved.

The Essence of The Wedge:

• A forward force produces a sideways force.
  • Push down on the axe, and the wood splits sideways.
  • Push forward on the door wedge, and the door gets squeezed upwards.
• MA = (Forward Length) / (Sideways Length)

Video of 2007 RGD

Conclusion:

Start to look for materials that could be used as simple machines! Start to collect junk for your RGD!

Enrichment: